On Fri, Oct 10, 2003 at 05:55:11PM -0400, Melvin Smith wrote:
> Which ones? The PIOCTL ones are, for a lack of current
> interface, a way for interfacing to the lower level IO
> system through a catchall opcode. It can be anything from
> setting terminal modes, buffering, separator characters, the
> list goes on.
Sorry. Wasn't clear. The PIOCTL macros are (to me) the correct way of doing
something.
-6 and -3 are magic numbers. They have no context as to what they might be.
> At 04:46 PM 10/10/2003 +0100, Nicholas Clark wrote:
> >On Fri, Oct 10, 2003 at 02:43:10AM -0000, Melvin Smith wrote:
> >> + else if(arg == PIOCTL_BLKBUF) {
> >> + PIO_setbuf(interpreter, pmc, PIO_UNBOUND);
> >> + return 0;
> >> + }
> >> + else return -3;
> >
> >> case PIOCTL_CMDGETBUFSIZE:
> >> if(b) return b->size;
> >> else return -6;
> >>
> >
> >What are all these magic numbers about?
> >
> >Nicholas Clark
>
>
Nicholas Clark
